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BOSTON MARATHON 2023

Jacey Anderson

Bib: 18216•F

MT

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 44%
Gender (Female)
#0 / 11423
Top 25%
Division (F18-39)
#0 / 4884
Top 43%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:06
Rank: #14555
Start → 5K
25:06 | 8:05/mi
10K· 6.21 mi
49:34
Rank: #14221 (+334)
5K → 10K
24:28 | 7:53/mi
15K· 9.32 mi
1:15:08
Rank: #14830 (-609)
10K → 15K
25:34 | 8:14/mi
20K· 12.43 mi
1:39:36
Rank: #14211 (+619)
15K → 20K
24:28 | 7:53/mi
Half· 13.11 mi
1:44:50
Rank: #14093 (+118)
20K → Half
5:14 | 7:40/mi
25K· 15.53 mi
2:03:45
Rank: #13610 (+483)
Half → 25K
18:55 | 7:48/mi
30K· 18.64 mi
2:28:27
Rank: #13017 (+593)
25K → 30K
24:42 | 7:57/mi
20M
2:39:27
Rank: #12822 (+195)
30K → 20M
11:00 | 8:06/mi
21M
2:47:33
Rank: #12478 (+344)
20M → 21M
8:06 | 8:06/mi
35K· 21.75 mi
2:53:07
Rank: #12314 (+164)
21M → 35K
5:34 | 7:26/mi
23M
3:03:02
Rank: #12106 (+208)
35K → 23M
9:55 | 7:55/mi
24M
3:10:37
Rank: #11927 (+179)
23M → 24M
7:35 | 7:35/mi
40K· 24.85 mi
3:17:14
Rank: #11770 (+157)
24M → 40K
6:37 | 7:44/mi
25.2M
3:20:12
Rank: #11735 (+35)
40K → 25.2M
2:58 | 8:36/mi
Finish· 26.22 mi
3:27:55
Rank: #11591 (+144)
25.2M → Finish
7:43 | 7:34/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:44:50
Pace8:00 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:43:05
Pace7:52 /mi
📊Negative Split: 1.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:0725:068:0525:06
8:05
-
10K
6.21 mi11:40:3549:347:5924:28
7:53
-0:12
15K
9.32 mi12:06:091:15:088:0425:34
8:14
+0:21
20K
12.43 mi12:30:371:39:368:0124:28
7:53
-0:21
Half
13.11 mi12:35:511:44:508:005:14
7:40
-0:13
25K
15.53 mi12:54:462:03:457:5818:55
7:48
+0:08
30K
18.64 mi13:19:282:28:277:5824:42
7:57
+0:09
20M
20.00 mi13:30:282:39:277:5811:00
8:06
+0:09
21M
21.00 mi13:38:342:47:337:598:06
8:06
0:00
35K
21.75 mi13:44:082:53:077:585:34
7:26
-0:40
23M
23.00 mi13:54:033:03:027:579:55
7:55
+0:29
24M
24.00 mi14:01:383:10:377:577:35
7:35
-0:20
40K
24.85 mi14:08:153:17:147:566:37
7:44
+0:09
25.2M
25.20 mi14:11:133:20:127:572:58
8:36
+0:52
Finish
26.22 mi14:18:563:27:557:567:43
7:34
-1:02

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

7:26 /mi

Average Pace

7:56 /mi

Slowest Pace

8:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:59:23

86% of race

Time at Steady Pace

28:32

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:56 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:16:0725:068:0525:06
8:05
#14555
10K
6.21 mi11:40:3549:347:5924:28
7:53
#14221
15K
9.32 mi12:06:091:15:088:0425:34
8:14
#14830
20K
12.43 mi12:30:371:39:368:0124:28
7:53
#14211
Half
13.11 mi12:35:511:44:508:005:14
7:40
#14093
25K
15.53 mi12:54:462:03:457:5818:55
7:48
#13610
30K
18.64 mi13:19:282:28:277:5824:42
7:57
#13017
20M
20.00 mi13:30:282:39:277:5811:00
8:06
#12822
21M
21.00 mi13:38:342:47:337:598:06
8:06
#12478
35K
21.75 mi13:44:082:53:077:585:34
7:26
#12314
23M
23.00 mi13:54:033:03:027:579:55
7:55
#12106
24M
24.00 mi14:01:383:10:377:577:35
7:35
#11927
40K
24.85 mi14:08:153:17:147:566:37
7:44
#11770
25.2M
25.20 mi14:11:133:20:127:572:58
8:36
#11735
Finish
26.22 mi14:18:563:27:557:567:43
7:34
#11591
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi145554355435516066(Top 60%)5325(Top 47%)5325(Top 109%)
10K6.21 mi3.10 mi14221+3344179+1764179+17613772(Top 52%)3902(Top 34%)3902(Top 80%)
15K9.32 mi3.11 mi14830-6094554-3754554-37516066(Top 60%)5325(Top 47%)5325(Top 109%)
20K12.43 mi3.11 mi14211+6194208+3464208+34612405(Top 47%)3198(Top 28%)3198(Top 65%)
Half13.11 mi0.68 mi14093+1184140+684140+6811696(Top 44%)2740(Top 24%)2740(Top 56%)
25K15.53 mi2.42 mi13610+4833869+2713869+27111125(Top 42%)2551(Top 22%)2551(Top 52%)
30K18.64 mi3.11 mi13017+5933556+3133556+31310520(Top 40%)2400(Top 21%)2400(Top 49%)
20M20.00 mi1.36 mi12822+1953463+933463+9311031(Top 41%)2763(Top 24%)2763(Top 57%)
21M21.00 mi1.00 mi12478+3443286+1773286+1777959(Top 30%)1516(Top 13%)1516(Top 31%)
35K21.75 mi0.75 mi12314+1643202+843202+848172(Top 31%)1590(Top 14%)1590(Top 33%)
23M23.00 mi1.25 mi12106+2083116+863116+869248(Top 35%)2151(Top 19%)2151(Top 44%)
24M24.00 mi1.00 mi11927+1793035+813035+818328(Top 31%)1820(Top 16%)1820(Top 37%)
40K24.85 mi0.85 mi11770+1572959+762959+768296(Top 31%)1878(Top 16%)1878(Top 38%)
25.2M25.20 mi0.35 mi11735+352953+62953+610232(Top 38%)2812(Top 25%)2812(Top 58%)
Finish26.22 mi1.02 mi11591+1442904+492904+499133(Top 34%)2303(Top 20%)2303(Top 47%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21stories
+97ft-345ft

Overall

16066

Females

5325

F18-39

5325

5K→10K

3.1 - 6.2 mi

Top 52%
×5stories
+79ft-138ft

Overall

13772

Females

3902

F18-39

3902

10K→15K

6.2 - 9.3 mi

Top 60%
×3stories
+67ft-78ft

Overall

16066

Females

5325

F18-39

5325

15K→20K

9.3 - 12.4 mi

Top 47%
×5stories
+106ft-86ft

Overall

12405

Females

3198

F18-39

3198

20K→Half

12.4 - 13.1 mi

Top 44%
×2stories
+19ft-37ft

Overall

11696

Females

2740

F18-39

2740

Half→25K

13.1 - 15.5 mi

Top 42%
×4stories
+66ft-88ft

Overall

11125

Females

2551

F18-39

2551

25K→30K

15.5 - 18.6 mi

Top 40%
×9stories
+181ft-148ft

Overall

10520

Females

2400

F18-39

2400

30K→20M

18.6 - 20.0 mi

Top 41%
×5stories
+64ft-50ft

Overall

11031

Females

2763

F18-39

2763

20M→21M

20.0 - 21.0 mi

Top 30%
×8stories
+106ft-24ft

Overall

7959

Females

1516

F18-39

1516

21M→35K

21.0 - 21.8 mi

Top 31%
×7stories
+17ft-86ft

Overall

8172

Females

1590

F18-39

1590

35K→23M

21.8 - 23.0 mi

Top 35%
×5stories
+23ft-63ft

Overall

9248

Females

2151

F18-39

2151

23M→24M

23.0 - 24.0 mi

Top 31%
×6stories
+12ft-82ft

Overall

8328

Females

1820

F18-39

1820

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8296

Females

1878

F18-39

1878

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10232

Females

2812

F18-39

2812

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2stories
+22ft-21ft

Overall

9133

Females

2303

F18-39

2303

Passing Analysis

Category:
Athletes Passed
3899
Passed By
935
Net Change
+2964
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14555
5K → 10K503169+334#14555#14221
10K → 15K52661-609#14221#14830
15K → 20K63112+619#14830#14211
20K → Half1213+118#14211#14093
Half → 25K4863+483#14093#13610
25K → 30K60310+593#13610#13017
30K → 20M21015+195#13017#12822
20M → 21M3462+344#12822#12478
21M → 35K1662+164#12478#12314
35K → 23M21911+208#12314#12106
23M → 24M1878+179#12106#11927
24M → 40K1636+157#11927#11770
40K → 25.2M5015+35#11770#11735
25.2M → Finish16218+144#11735#11591
TOTALS3899935+2964
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing